Mechanism for regulating flow of liquids.



H. G. W. OTT'.

MBCHANISM POR REGULATING FLOW 0F LIQUIDS.

APPLICATION FILED JUNE 14, 1910,

1,060,554., Patented Apr. 29, 1913.

HARRY Gr. W. OTT, OF PHILADELPHIA,. PENNSYLVANIA.

MEGHANISM FOR REGULATING FLOli 0F LIQUIDS.

Specication of Letters Patent.

Application led June 14. 1910. Serial No. 566,876.

. following is a specification.

The object of my invention is to provide simple and efficient mechanismfor regulating the ow of iiuids and cutting off said flow after it hascontinued for a predetermined time. This object I attain in the mannerhereinafter set forth, reference be-A ing had to the accompanyingdrawing, in which- Figure 1 is a side view of apparatus constructed inaccordance with my invention; Fig. 2 is an enlarged transverse sectionof that portion of the apparatus which cooperates with the. valve stem;Fig. 3 is an enlarged transverse section of partof the escapementdevice, and Fig. 4 is a side view illustrating a modificationof myinvention.

In the drawing. 1 represents a valve of anv suitable character forgoverning the flow of air, Water, oil. or other Huid, the valve selectedfor illustration being one of the sliding gate type. The opening of thisvalve is effected by depressing the outer end of a lever 2 and therebyraising a toothed sector 3 at the inner end of the lever, move' ment ofthe lever in the opposite direction to cause closing of the valve beingeffected by a weight 4 hung to and depending from the lever 2.

The sector 3 is in mesh with the first of a train of gears constitutingan escapernent device, said first gear Wheel being` connected to thenext gear wheel of the train by any suitable form of ratchet. and 'pawldevice, whereby, when the sector 3 rises. it will operate only the firstgear but, when it descends, the movement of said first gear will betransmitted to the other gears of the train. The last shaft of the geartrain may be p'rovided with any suitable form of retarding device forregulating its speed of motion. It may, for instance, have a centrifugalgovernor acting to impart side movement to a disk 6 with whichcooperates a. brake shoe 7 carried by a lever 9 which is acted upon by acam disk 10 whereby the brake shoe may be moved nearer t0 or fartherfrom the disk 6 when the same is in its position of rest. (See Fig. 3.)

The lever 2 is connected by a link 11 to another lever 12 which ispivotally mounted upon a link 13 hung to the casing of the valve 1, anda given movement of the lever 2 may serve to open the valve 1 eitherfully or to a lesser extent. depending upon the adjustment of the links11 or 13, orboth, nearer toor farther from the point of connection ofthe lever 12 with the valve stem, openings being provided in the levers2 and 12 for the purpose of effecting such adjustment. In order,however, to provide a/iner adjustment than can thus be elected, Iarrange for a certain amount of lost motion of the lever 12 in respectto the Valve stem 14 in the following manner: The valve stein has. atits Aupper end, a yoke 15 through which the lever 12 passes, said lever12 resting upon the bottom of the yoke when the.

valve 1 is fully closed. and the sector 3 of the lever 2 is at itslowest point. The top of the yoke 15 carries a nut to which is adapted ascrew stem 16, to the lower end of which is swiveled a block 17vertically guided in the yoke 15 and carrying, by preference, a pointer19 which coperates with a graduated scale on the yoke. lVhen the block17 is depressed so as to bear upon the lever 12,. the full liftingmovement of they latter will be imparted to the valve 1. but b v raisingthe block 17 to any desired extent. that portion of the upward movementof the lever 12 until it contacts with the block will be lost so far asregards the lift of the valve stem and the extent of opening of thevalve 1 will be correspondingly reduced, the screw stern 16 providingfor a very delicate adjustment of the contact block 17 so as to providefor slight differences in the extent of opening of the vzlve, whichdiiferences are indicated by the position in respect to the graduatedscale. of the pointer 19 carried by the contact block 17. As a certainamount of time is required in order to effect the descent of theweighted end of the lever 2. the volume of How within such period oftime will depend upon the extent to which the valve is opened in thefirst place and this can be roughly regulated by the adjustment of thelinks 11 or 13, or both. in respect to the lever 12. or more accuratelyregulated Patented Apr. 29, 1913.

by the adjust-ment of the contact block 17 in respect to said lever 12.

In the modification shown in Fig. 4, the main lever 2 engages directlywith the lost motion device on the valve stem, or it may engage with asimilar device on the link 1l, if desired.

I claim:

l. In mechanism for controlling the llow of fluids, the combination ot avalve, means for regulating the speed ot its closing movement, a` valveopening device having a throw sufficient to fully open the valve. andmeans including a lost motion device for varying the movement of theValve in respect to said throwp 9.. In mechanism for controlling thellow ot' fluids, the combination of a Valve, means for regulating thespeed of its closing movement, a Valve opening device having a throwsuflicient to fully open the valve, and means for varying the movementof the valve in; respect to said throw, said means including a leverconnected to said opening device and to the' valve, but provided withmeans including a lost motion device for varying the extent of itsmovement in respect to the opening device.A

8. In mechanism for controlling the flow of lluids. the combination of avalve. means for regulating the speed of its closing movement, a valveopening device having a throw sufficient to fully open the valve, and.means for varying the movement of the valvein respect to said throw,said means comprising an adjustable lost motion connection be-. tweenthe opening device and the valve stem.

4. In mechanism for controlling the flow of fluids, the combination of avalve, means for regulating the speed of its closing movement, a valveopening device having a throw sutlicient to fully open the valve, andmeans for varying the movementof the valve in respect to said throw,said means comprising a device connected to the opening device, buthaving an adjustable lost motion connection with the valve stem.

In mechanism for controlling the llow of fluids, the combination of avalve, means for regulating the speed of its closing movement, a valveopening` device having a throw suliicient to fully open the valve, andmeans for varying the movement of the valve in respect to said throw,said means comprising a yoke on the valve stem, an adjustablecontactblock carried by said yoke, and a lever connected to the opening deviceand engaging the yoke and block to impart movement to the valve stem.

6. In mechanism forcont-rolling the flow of fluids, the combination of avalve, means for regulating the speed lof its closing movement, a valveo ening device having a throw sufficient to fully open the valve, andmeans for Varying the movement of the valve in respect to said throw,said means comprising a yoke on the valve stem, an adjustable blockcarried by said yoke, and a pointer on said block.

7 In mechanism for controlling the llow of l'luids, the combination of aValve, means for regulating the speed of its closing movement, a valveopening device having a throw sufficient to fully open .the valve, andmeans for varying the movement ofthe valve in 'respect to said throw,said means comprising a yoke on' the valve stem, an adjustable blockcarried b v said yoke, a lever engaging said yoke and block and servingto impart movement to the valve stem, and a pointer on saidblock. Y y

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

HARRY G. W. OTT. Witnesses:

KATE A. BEADLE, HAMILTON D. TURNER.

